Gas chromatography (GC) is an analytical technique used to separate and analyze mixtures of volatile compounds. It has been recognized as an official method for moisture content determination, providing precise and reliable measurements in various industries.
In GC, a sample is injected into a heated column packed with a stationary phase. The sample components are then separated based on their different affinities for the stationary and mobile phases. As the sample passes through the column, the components with higher affinity for the stationary phase will move slower, while those with lower affinity will move faster. The separated components are then detected and quantified, providing information on the composition of the sample.
GC is widely used for moisture content determination in a variety of materials, including:
GC offers several advantages for moisture content determination:
GC is recognized as an official method of moisture content determination by various regulatory agencies, including:
These methods provide detailed protocols for sample preparation, GC analysis, and moisture content calculation, ensuring consistent and reliable results.
Gas chromatography (GC) is a powerful analytical technique that has been officially recognized for moisture content determination in various industries. Its accuracy, precision, sensitivity, and versatility make it a reliable method for measuring moisture content in a wide range of materials.